Investigation of trapped radiation by Cosmos 426. IV - Structure of electron flows at the outer boundary of the geomagnetic trap

Details Investigation of trapped radiation by Cosmos 426. IV - Structure of electron flows at the outer boundary of the geomagnetic trap Investigation of trapped radiation by Cosmos 426. IV - Structure of electron flows at the outer boundary of the geomagnetic trap

Jul 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976kosis..14..637k&link_type=abstract

Kosmicheskie Issledovaniia, vol. 14, July-Aug. 1976, p. 637-641. In Russian.

Computer Science

Electron Density Profiles, Magnetically Trapped Particles, Magnetospheric Electron Density, Satellite Observation, Cosmos Satellites, Diurnal Variations, Electron Energy, Energy Distribution, Geomagnetism, Lines Of Force, Polar Regions

Scientific paper

Data are presented on the electron energy distribution at high latitudes at 400 to 2000 km, obtained on March 6-8, 1971, under conditions of low magnetic activity. A storage unit mounted aboard the satellite made it possible to obtain the complete electron flux distribution profile in both polar cap regions within 24 hr. The data on the electron spectra in the regions of closed and open lines of force ('hard' and 'soft' zones) suggest that electrons penetrate the magnetosphere in two regions: the plasma layer region in the magnetosphere tail (characterized by exponentially decreasing electron spectra); and the dayside neutral point region (where a peak was observed for electrons of about 1 keV). The energy of the electrons was found to increase during the drift. In the radiation belt regions on the morning side of the earth, an intensity peak was occasionally observed for 10-keV particles. The peak may be caused by 'local' acceleration mechanisms. Drifting appears to be accompanied by intensive precipitation of electrons, since at 14-17 h MLT the 10-keV electron fluxes disappear.

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